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Holley 97-321 - Harmonic Balancer Bolt

Holley 97-321 - Harmonic Balancer Bolt

Holley | 97-321
SKU: HOL-97-321
$25.99 USD
$28.59 USD $25.99 USD
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100 in stock

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Holley 97-321 - Harmonic Balancer Bolt

Holley Harmonic Balancer Bolt - Chevy Big Block - 12-Point

Harmonic Balancer Bolt; For Chevy Big Block 396-454 w/Mid Mount Accessory Drive System; 12 Point; .5 in. Wrench Size; .200 in. Thick Washer; Black;

Replacement harmonic balancer bolt with thick washer for Big Block Chevy Mid-Mount Accessory drive system. 12-Point, 1/2 in. Wrench Size, 1/2 in.-20 x 2.500 in. Under Head Length, Washer diameter 1.5 in. x 0.200 in. Thick.

  • 180,000 PSI Rating (Grade 9)
  • Made from Steel
  • Black E-Coat Finish
  • 1/2" Wrench Size
  • 12-Point Bolt Head
  • Large Diameter Extra Thick Washer - .200" Thick x 1.5" Diameter
  • Reusable - Not Torque-To-Yield
Bolt Grade: 10.9
Brand: Holley
Category: Engine
Color: Black
Emission Code: 6
Engine: Chevy Big Block V8
Finish: Black E-Coat
Grade Type: Performance
Head Drive Type: 12 Point
Head Style: 12-Point
Length: 2.5
Material: Steel
part type: Engine Harmonic Balancer Bolt
Product Type: Harmonic Balancer Bolts
PSI Rating: 180,000
Reusable: Yes
Sub Category: Hardware, Fasteners and Fittings
Thread Diameter: 1/2
Thread Pitch: 20
Thread Size: 1/2-20
Under Head Length: 2.500"
Universal Or Specific Fit: Universal
Warning: California Proposition 65
Washer Size: .200" Thick x 1.5" Diameter
Washer(s) Included: Yes
Wrench Size: 1/2"
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